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refactored

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This commit is contained in:
Justin Lin 2017-05-14 13:09:37 +08:00
parent ddc739f4bb
commit 8b3cf2e163
1 changed files with 10 additions and 17 deletions
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27
src/rounded_square.scad
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@ -13,28 +13,21 @@
include <__private__/__is_vector.scad>;
include <__private__/__frags.scad>;
include <__private__/__nearest_multiple_of_4.scad>;
include <__private__/__pie_for_rounding.scad>;
include <__private__/__half_trapezium.scad>;
include <__private__/__trapezium.scad>;
module rounded_square(size, corner_r, center = false) {
step_a = 360 / __nearest_multiple_of_4(__frags(corner_r));
is_vt = __is_vector(size);
x = is_vt ? size[0] : size;
y = is_vt ? size[1] : size;
y = is_vt ? size[1] : size;
half_x = x / 2;
half_y = y / 2;
half_w = half_x - corner_r;
half_h = half_y - corner_r;
translate(center ? [0, 0] : [half_x, half_y]) polygon(concat(
[[half_x, -half_h], [half_x, half_h]],
[for(a = [step_a:step_a:90 - step_a]) [corner_r * cos(a) + half_w, corner_r * sin(a) + half_h]],
[[half_w, half_y], [-half_w, half_y]],
[for(a = [90 + step_a:step_a:180 - step_a]) [corner_r * cos(a) - half_w, corner_r * sin(a) + half_h]],
[[-half_x, half_h], [-half_x, -half_h]],
[for(a = [180 + step_a:step_a:270 - step_a]) [corner_r * cos(a) - half_w, corner_r * sin(a) - half_h]],
[[-half_w, -half_y], [half_w, -half_y]],
[for(a = [270 + step_a:step_a:360 - step_a]) [corner_r * cos(a) + half_w, corner_r * sin(a) - half_h]]
half_y = y / 2;
translate(center ? [0, 0] : [half_x, half_y]) polygon(__trapezium(
radius = half_x,
h = y,
round_r = corner_r
));
}